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Dev tools · alternatives · 2026

24 alternatives to Typical is TypeScript with type-safety at runtime

Spent a week in the break building a pre-compiler that brings type safety to runtime. Still pretty early, but generally does what it says. Looking for feedback, code that breaks it (check out the playground), ideas etc.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    TypeScript playground: https://www.typescriptlang.org/play?#code/KYDwDg9gTgLgBDAnmY...

    2023 · github.com · its alternatives →

  2. 2

    :icecream: vanillatype - Lightweight runtime types for vanilla JS and Node - crisdosaygo/vanillatype

    2020 · github.com · its alternatives →

  3. 3

    🛫 Zero-codegen, no-compile TypeScript `type` inference from protobuf `message`s - nathanhleung/protobuf-ts-types

    2025 · github.com · its alternatives →

  4. 4

    GraphQL APIs in TypeScript with complete e2e type safety

    2021 · uniform-graphql.whatsgood.dog · its alternatives →

  5. 5

    The Playground lets you write TypeScript or JavaScript online in a safe and sharable way.

    Mar 2026 · typescriptlang.org · its alternatives →

  6. 6

    Hello, folks. I'm Jiang, the author of ESInfer. I love writing Javascript because it has a prosperous ecosystem and is quick to get my hands dirty. However, sometimes it's painful when the flow is not fast to follow due to the lack of a type system. To solve this, I wrote ESInfer, a statical inference tool, to automatically type check and generate type annotations for Javascript. It works with pure Javascript without any add-ons to the language or user-space code and supports highly dynamic features, such as the modification of prototypes. It is still in the very early stage, which offers…

    2022 · esinfer.com · its alternatives →

  7. 7

    We've been building Crust (https://crustjs.com/), a TypeScript-first, Bun-native CLI framework with zero dependencies. It's been powering our core product internally for a while, and we're now open-sourcing it. The problem we kept running into: existing CLI frameworks in the JS ecosystem are either minimal arg parsers where you wire everything yourself, or heavyweight frameworks with large dependency trees and Node-era assumptions. We wanted something in between. What Crust does differently: - Full type inference from definitions — args and flags are inferred automatically. No…

    Mar 2026 · github.com · its alternatives →

  8. 8

    Hey HN! I'm the author of SharpTS, a TypeScript interpreter and ahead-of-time compiler written in C#. *What makes it different:* - Dual execution modes - interpret TypeScript directly OR compile to native .NET executables - Full C# interop - compile TypeScript to DLLs that C# projects can reference with full type safety *What works today:* - Core TypeScript: classes, interfaces, generics, async/await, decorators - Advanced types: union/intersection types, literal types, type guards - Compiles to verifiable .NET IL with performance comparable to hand-written C# - 80+ unit tests,…

    Jan 2026 · github.com · its alternatives →

  9. 9IA

    Hi HN, I have been working on a new programming language and compiler. Website: https://ironwall-lang.dev GitHub: https://github.com/3WyUFvDOdCbBw7gOZHwcfgKF/ironwall Why a new language is still needed: https://ironwall-lang.dev/en/motivation The compiler is written in TypeScript at the moment, and work on a self-hosting compiler written in Ironwall is ongoing. I would be interested in feedback. Thank you.

    Jun 2026 · its alternatives →

  10. 10

    I built a cli tool that gets you started with TypeScript development with zero config. Initially created to solve my own problem but thought it might be useful for others as well. - SWC compiler - TypeScript type check support - Live reload support - .env file support - Path alias support - Typescript script runner - REPL support Please tell me I am not going down a rabbit hole.

    2022 · github.com · its alternatives →

  11. 11
    JS20▲12

    Build TypeScript backends and SDKs with up to 90% less code. Faster, cheaper & easier to maintain. Ready for the AI era, less code = less tokens & reduced costs.

    Oct 2025 · js20.dev · its alternatives →

  12. 12

    Let JSON play nicely with Typescript. Contribute to ostrowr/ts-json-validator development by creating an account on GitHub.

    2019 · github.com · its alternatives →

  13. 13AL

    Hi HN, I build this a few months back, thinking about improving it but wanted to share as is first to see what feedback I can get. I built it to be modular and with a clean understandable codebase in mind so easily extendable. I want to add more components to it maybe... Thanks! Will add link to the repo in a comment now

    2022 · its alternatives →

  14. 14

    Elegant, highly efficient data validation for JavaScript. - lucono/xtypejs

    2015 · github.com · its alternatives →

  15. 15

    Type Safe TSX Runner With Type Checking

    2025 · npmjs.com · its alternatives →

  16. 16TS

    Hi HN, I’m Guillaume, the cofounder of Bearer, an Open Source SAST solution. After launching a few weeks ago here on Hacker News with support for Ruby and JavaScript stacks, I’m happy to report we’ve just released a new version (v1.2) with TypeScript support! In terms of code coverage, we use the same rules already implemented for vanilla JavaScript, but as usual, you can build your own. The rules list is here: https://docs.bearer.com/reference/rules/ It’s a first version for TS, but we believe that thanks to the pre-existing JavaScript support it should already…

    2023 · its alternatives →

  17. 17

    A easy (and fast) typescript validation library/macro. Automatically generate validation functions for Typescript types. - vedantroy/typecheck.macro

    2020 · github.com · its alternatives →

  18. 18

    Hello everyone, For the past several months, I have been building multiple React/TailwindCSS components for my projects. I have decided to bundle and document them so that I can share them with the community. The entire UI kit is written in Typescript on top of the class-variance-authority library. Although I am already using these components in production, the project is still in beta since it lacks a full test suite and dark mode. Please feel free to take a look and provide feedback if you have a moment to spare. Thank you!

    2023 · rewind-ui.dev · its alternatives →

  19. 19

    Hello, we're the Treenix team. We're building typed low-code runtime where humans and agents collaborate to build applications and workflows. Write a simple TypeScript class with methods, and Treenix automatically delivers admin interface, storage, API and MCP, access rules, UI form and audit trail. Views in Treenix are reactive, data-bound, and synced across all clients. They also support display contexts: data can render differently depending on the situation — a table in one place, a list in another. You can register multiple Views for the same data type, and the view engine picks the…

    Jun 2026 · github.com · its alternatives →

  20. 20

    Hi HN, I’ve been working on an experimental programming language called XXML. The project started from a frustration I kept running into across systems languages: Languages with strong ownership tend to avoid runtime reflection. Languages with rich reflection usually rely on GC or give up memory guarantees. Compile-time code generation often requires a separate macro language. I wanted to explore whether those tradeoffs are truly necessary. What XXML is trying to do XXML is a statically-typed, native language that: Uses explicit ownership and borrowing (no garbage collector) Supports runtime…

    Dec 2025 · xxml-language.com · its alternatives →

  21. 21

    Type-safe layered configuration. Merge files and environment variables, validate with any schema, and get a runtime-checked object with full TypeScript IntelliSense.

    2025 · layerfig.dev · its alternatives →

  22. 22

    Simplify E2E type-safety for your Typescript REST APIs

    2023 · ts-rest.com · its alternatives →

  23. 23

    I created LemmaScript to compile TypeScript to a verification backend (Dafny or Lean) and prove properties on the systematically derived model. I'll keep developing this, but I have a few case studies already, and it looks quite promising, with the caveat that each case study pushed the development of the core further. I can support both greenfield and brownfield projects, and in many cases, verification can be in-place: the TypeScript source is just annotated and verified independently but runs as is.

    Apr 2026 · github.com · its alternatives →

  24. 24

    As a developer of typia, have to alive in the new typescript-go era, I made a new toolchain for tsgo. Making the ttsc, I understood that the new plugin toolchain system can dramatically reduce lint rule checking time by integrating into the typescript-go. So made `@ttsc/lint`, and its time is 600x to 1600x faster than eslint. From now on, when you compile TypeScript, lint violations would be caught in the same time. No more need to run both `tsgo` and `eslint` independently. > This repository is not v1 yet because the typescript-go has not been released yet, but if you wanna experience…

    Jul 2026 · github.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →